Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W4TMO callsign genealogy
Currently held by Gulvin, James H
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by W4TMO's current licensee, walking backwards.
- GULVIN, JAMES HNCgranted 2003-12-23cancelled 2006-02-14
Successor callsigns
Callsigns held now by people who previously held W4TMO.
No current licensee on record previously held this callsign.